Agarose extracted from sea weeds find its use in which of the following technique?

Electrophoresis is a technique in which particles or molecules of different sizes and charges are separated due to their movement to different distances under the influence of an electric field. Example - nucleic acids, proteins, amino acids, nucleotides etc. A base material is used for the passage of molecules of the mobile phase. In PAGE (Polyacrylamide Gel Electrophoresis) the base material is polyacrylamide or polymer of acrylamide and methylene bisacrylamide. In an agarose gel electrophoresis, the base material is agarose extracted from red algae.